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      1    0  stevel /*
      2  356  muffin  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
      3    0  stevel  * Use is subject to license terms.
      4    0  stevel  */
      5    0  stevel 
      6    0  stevel /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
      7    0  stevel /*	  All Rights Reserved  	*/
      8    0  stevel 
      9    0  stevel /*
     10    0  stevel  * Copyright (c) 1980 Regents of the University of California.
     11    0  stevel  * All rights reserved. The Berkeley Software License Agreement
     12    0  stevel  * specifies the terms and conditions for redistribution.
     13    0  stevel  */
     14    0  stevel 
     15    0  stevel #pragma ident	"%Z%%M%	%I%	%E% SMI"
     16    0  stevel 
     17    0  stevel #include "sh.h"
     18    0  stevel #include "sh.tconst.h"
     19    0  stevel 
     20    0  stevel void ruadd(struct rusage *ru, struct rusage *ru2);
     21    0  stevel void prusage(struct rusage *r0, struct rusage *r1, struct timeval *e,
     22    0  stevel 	struct timeval *b);
     23    0  stevel void pdeltat(struct timeval *t1, struct timeval *t0);
     24    0  stevel void tvadd(struct timeval *tsum, struct timeval *t0);
     25    0  stevel void tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0);
     26    0  stevel 
     27    0  stevel /*
     28    0  stevel  * C Shell - routines handling process timing and niceing
     29    0  stevel  */
     30    0  stevel 
     31    0  stevel void
     32  356  muffin settimes(void)
     33    0  stevel {
     34    0  stevel 	struct rusage ruch;
     35    0  stevel 
     36    0  stevel #ifdef TRACE
     37    0  stevel 	tprintf("TRACE- settimes()\n");
     38    0  stevel #endif
     39    0  stevel 	(void) gettimeofday(&time0, (struct timezone *)0);
     40    0  stevel 	(void) getrusage(RUSAGE_SELF, &ru0);
     41    0  stevel 	(void) getrusage(RUSAGE_CHILDREN, &ruch);
     42    0  stevel 	ruadd(&ru0, &ruch);
     43    0  stevel }
     44    0  stevel 
     45    0  stevel /*
     46    0  stevel  * dotime is only called if it is truly a builtin function and not a
     47    0  stevel  * prefix to another command
     48    0  stevel  */
     49    0  stevel void
     50  356  muffin dotime(void)
     51    0  stevel {
     52    0  stevel 	struct timeval timedol;
     53    0  stevel 	struct rusage ru1, ruch;
     54    0  stevel 
     55    0  stevel #ifdef TRACE
     56    0  stevel 	tprintf("TRACE- dotime()\n");
     57    0  stevel #endif
     58    0  stevel 	(void) getrusage(RUSAGE_SELF, &ru1);
     59    0  stevel 	(void) getrusage(RUSAGE_CHILDREN, &ruch);
     60    0  stevel 	ruadd(&ru1, &ruch);
     61    0  stevel 	(void) gettimeofday(&timedol, (struct timezone *)0);
     62    0  stevel 	prusage(&ru0, &ru1, &timedol, &time0);
     63    0  stevel }
     64    0  stevel 
     65    0  stevel /*
     66    0  stevel  * donice is only called when it's on the line by itself or with a +- value
     67    0  stevel  */
     68    0  stevel void
     69    0  stevel donice(tchar **v)
     70    0  stevel {
     71    0  stevel 	tchar *cp;
     72    0  stevel 	int nval;
     73    0  stevel 
     74    0  stevel #ifdef TRACE
     75    0  stevel 	tprintf("TRACE- donice()\n");
     76    0  stevel #endif
     77    0  stevel 	v++;
     78    0  stevel 	cp = *v++;
     79    0  stevel 	if (cp == 0) {
     80    0  stevel 		nval = 4;
     81    0  stevel 	} else if (*v == 0 && (cp[0] == '+' || cp[0] == '-')) {
     82    0  stevel 		nval = getn(cp);
     83    0  stevel 	}
     84    0  stevel 	(void) setpriority(PRIO_PROCESS, 0, nval);
     85    0  stevel }
     86    0  stevel 
     87    0  stevel void
     88    0  stevel ruadd(struct rusage *ru, struct rusage *ru2)
     89    0  stevel {
     90    0  stevel 	long *lp, *lp2;
     91    0  stevel 	int cnt;
     92    0  stevel 	/*
     93    0  stevel 	 * The SunOS 4.x <sys/rusage.h> has ru_first and ru_last #defines
     94    0  stevel 	 * as below.
     95    0  stevel 	 * The SVR4/POSIX <sys/resource.h> does not have these defined for
     96    0  stevel 	 * struct rusage
     97    0  stevel 	 * The #defines below are here so that the original csh logic
     98    0  stevel 	 * for ruadd remains clear now that there is no longer a private copy
     99    0  stevel 	 * of the old <sys/resource.h>
    100    0  stevel 	 */
    101    0  stevel #define	ru_first ru_ixrss
    102    0  stevel #define	ru_last ru_nivcsw
    103    0  stevel 
    104    0  stevel #ifdef TRACE
    105    0  stevel 	tprintf("TRACE- ruadd()\n");
    106    0  stevel #endif
    107    0  stevel 	tvadd(&ru->ru_utime, &ru2->ru_utime);
    108    0  stevel 	tvadd(&ru->ru_stime, &ru2->ru_stime);
    109    0  stevel 	if (ru2->ru_maxrss > ru->ru_maxrss) {
    110    0  stevel 		ru->ru_maxrss = ru2->ru_maxrss;
    111    0  stevel 	}
    112    0  stevel 	cnt = &ru->ru_last - &ru->ru_first + 1;
    113    0  stevel 	lp = &ru->ru_first;
    114    0  stevel 	lp2 = &ru2->ru_first;
    115    0  stevel 	do {
    116    0  stevel 		*lp++ += *lp2++;
    117    0  stevel 	} while (--cnt > 0);
    118    0  stevel }
    119    0  stevel 
    120    0  stevel void
    121    0  stevel prusage(struct rusage *r0, struct rusage *r1, struct timeval *e,
    122    0  stevel 	struct timeval *b)
    123    0  stevel {
    124    0  stevel #define	pgtok(p)	((p * pgsize) / 1024)
    125    0  stevel 	static int	pgsize;
    126    0  stevel 
    127    0  stevel 	time_t t =
    128    0  stevel 	    (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 +
    129    0  stevel 	    (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 +
    130    0  stevel 	    (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 +
    131    0  stevel 	    (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000;
    132    0  stevel 	tchar *cp;
    133    0  stevel 	int i;
    134    0  stevel 	struct varent *vp = adrof(S_time);
    135    0  stevel 	int ms =
    136    0  stevel 	    (e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000;
    137    0  stevel 
    138    0  stevel #ifdef TRACE
    139    0  stevel 	tprintf("TRACE- prusage()\n");
    140    0  stevel #endif
    141    0  stevel 	if (pgsize == 0) {
    142    0  stevel 		pgsize = getpagesize();
    143    0  stevel 	}
    144    0  stevel 
    145    0  stevel 	cp = S_USAGEFORMAT;	/* "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww" */
    146    0  stevel 	if (vp && vp->vec[0] && vp->vec[1]) {
    147    0  stevel 		cp = vp->vec[1];
    148    0  stevel 	}
    149    0  stevel 	for (; *cp; cp++) {
    150    0  stevel 		if (*cp != '%') {
    151    0  stevel 			Putchar(*cp);
    152    0  stevel 		} else if (cp[1]) {
    153    0  stevel 			switch (*++cp) {
    154    0  stevel 
    155    0  stevel 			case 'U':
    156    0  stevel 				pdeltat(&r1->ru_utime, &r0->ru_utime);
    157    0  stevel 				break;
    158    0  stevel 
    159    0  stevel 			case 'S':
    160    0  stevel 				pdeltat(&r1->ru_stime, &r0->ru_stime);
    161    0  stevel 				break;
    162    0  stevel 
    163    0  stevel 			case 'E':
    164    0  stevel 				psecs_int(ms / 100);
    165    0  stevel 				break;
    166    0  stevel 
    167    0  stevel 			case 'P':
    168    0  stevel 				printf("%d%%", (int)(t * 100 /
    169    0  stevel 				    ((ms ? ms : 1))));
    170    0  stevel 				break;
    171    0  stevel 
    172    0  stevel 			case 'W':
    173    0  stevel 				i = r1->ru_nswap - r0->ru_nswap;
    174    0  stevel 				printf("%d", i);
    175    0  stevel 				break;
    176    0  stevel 
    177    0  stevel 			case 'X':
    178    0  stevel 				printf("%d", t == 0 ? 0 :
    179    0  stevel 				    pgtok((r1->ru_ixrss - r0->ru_ixrss) / t));
    180    0  stevel 				break;
    181    0  stevel 
    182    0  stevel 			case 'D':
    183    0  stevel 				printf("%d", t == 0 ? 0 :
    184    0  stevel 				    pgtok((r1->ru_idrss + r1->ru_isrss-
    185    0  stevel 				    (r0->ru_idrss + r0->ru_isrss)) / t));
    186    0  stevel 				break;
    187    0  stevel 
    188    0  stevel 			case 'K':
    189    0  stevel 				printf("%d", t == 0 ? 0 :
    190    0  stevel 				    pgtok(((r1->ru_ixrss + r1->ru_isrss +
    191    0  stevel 				    r1->ru_idrss) - (r0->ru_ixrss +
    192    0  stevel 				    r0->ru_idrss + r0->ru_isrss)) / t));
    193    0  stevel 				break;
    194    0  stevel 
    195    0  stevel 			case 'M':
    196    0  stevel 				printf("%d", r1->ru_maxrss / 2);
    197    0  stevel 				break;
    198    0  stevel 
    199    0  stevel 			case 'F':
    200    0  stevel 				printf("%d", r1->ru_majflt - r0->ru_majflt);
    201    0  stevel 				break;
    202    0  stevel 
    203    0  stevel 			case 'R':
    204    0  stevel 				printf("%d", r1->ru_minflt - r0->ru_minflt);
    205    0  stevel 				break;
    206    0  stevel 
    207    0  stevel 			case 'I':
    208    0  stevel 				printf("%d", r1->ru_inblock - r0->ru_inblock);
    209    0  stevel 				break;
    210    0  stevel 
    211    0  stevel 			case 'O':
    212    0  stevel 				printf("%d", r1->ru_oublock - r0->ru_oublock);
    213    0  stevel 				break;
    214    0  stevel 			}
    215    0  stevel 		}
    216    0  stevel 	}
    217    0  stevel 	Putchar('\n');
    218    0  stevel #undef	pgtok
    219    0  stevel }
    220    0  stevel 
    221    0  stevel void
    222    0  stevel pdeltat(struct timeval *t1, struct timeval *t0)
    223    0  stevel {
    224    0  stevel 	struct timeval td;
    225    0  stevel 
    226    0  stevel #ifdef TRACE
    227    0  stevel 	tprintf("TRACE- pdeltat()\n");
    228    0  stevel #endif
    229    0  stevel 	tvsub(&td, t1, t0);
    230    0  stevel 	/* change printf formats */
    231    0  stevel 	printf("%d.%01d", td.tv_sec, td.tv_usec / 100000);
    232    0  stevel }
    233    0  stevel 
    234    0  stevel void
    235    0  stevel tvadd(struct timeval *tsum, struct timeval *t0)
    236    0  stevel {
    237    0  stevel 
    238    0  stevel #ifdef TRACE
    239    0  stevel 	tprintf("TRACE- tvadd()\n");
    240    0  stevel #endif
    241    0  stevel 	tsum->tv_sec += t0->tv_sec;
    242    0  stevel 	tsum->tv_usec += t0->tv_usec;
    243    0  stevel 	if (tsum->tv_usec > 1000000) {
    244    0  stevel 		tsum->tv_sec++;
    245    0  stevel 		tsum->tv_usec -= 1000000;
    246    0  stevel 	}
    247    0  stevel }
    248    0  stevel 
    249    0  stevel void
    250    0  stevel tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0)
    251    0  stevel {
    252    0  stevel 
    253    0  stevel #ifdef TRACE
    254    0  stevel 	tprintf("TRACE- tvsub()\n");
    255    0  stevel #endif
    256    0  stevel 	tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
    257    0  stevel 	tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
    258    0  stevel 	if (tdiff->tv_usec < 0) {
    259    0  stevel 		tdiff->tv_sec--;
    260    0  stevel 		tdiff->tv_usec += 1000000;
    261    0  stevel 	}
    262    0  stevel }
    263